The plate scale of the CCD then comes into play as angstroms per pixel instead of the usual astrometric measure arc/secs per pixel.    From Wordnik.com.  [Amateur Spectroscopy | Universe Today] Reference

The sad thing about it is that small nongravitational forces and astrometric errors make an accurate collision prediction very hard to do more than a few years out.    From Wordnik.com.  [Asteroid Threat Conference Underway - NASA Watch] Reference

He could talk about the most futuristic notions, and hold pure philosophical discourse over a glass of wine, yet also develop the most precise astrometric tools of his generation.    From Wordnik.com.  [Steven J. Ostro - NASA Watch] Reference

As for the meantime, we have the two most important astrophysical missions of the NASA James Webb Telescope (JWT) and the ESA's internationally collaborated astrometric Gaia; (to be launched in 2011) which both collectively for the next five years will provide the most contributions to astronomy and astrophysics.    From Wordnik.com.  [Obama to Unveil "Ambitous" Plan for NASA | Universe Today] Reference

Kepler's Third Law of Planetary Motion to determine if it is a astrometric binary.    From Wordnik.com.  [CreationWiki - Recent changes [en]]

One way that astronomers find if a system is binary was found with the discovery of astrometric binaries.    From Wordnik.com.  [CreationWiki - Recent changes [en]]

To provide such a test, we propose to carry out FGS astrometric studies on four stars hosting seven companions.    From Wordnik.com.  [SpaceRef - Calendar of Events] Reference

In addition, the size of the exoplanet and its relatively large distance from its star aided its astrometric discovery.    From Wordnik.com.  [Scientific American] Reference

These observations also provide a check of the astrometric and PSF stability of the instrument over its full field of view.    From Wordnik.com.  [SpaceRef Top Stories] Reference

There are a few types of binary stars such as visual binary stars, spectroscopic binary stars, and astrometric binary stars.    From Wordnik.com.  [CreationWiki - Recent changes [en]]

We request a repeated observation of these stars in Cycle 19, which will conclusively measure the astrometric proper motions.    From Wordnik.com.  [SpaceRef Top Stories] Reference

We propose to carry out a Snapshot search for astrometric companions in a subsample of very low-mass, halo subdwarfs identified within 120 parsecs of the Sun.    From Wordnik.com.  [SpaceRef Top Stories] Reference

An astrometric binary is a star system where only one star can be observed but an unseen companion is inferred through a perturbation ( "wobble") of the star's proper motion in space.    From Wordnik.com.  [Conservapedia - Recent changes [en]] Reference

The field is astrometric, and astrometric guide stars will be used, so that the plate scale and image orientation may also be determined if necessary (as in SMOV proposals 11436 and 11442).    From Wordnik.com.  [SpaceRef Top Stories] Reference

His session will evaluate Amazon's EC2 / S3 suitability for this scenario, by running a distributed astrometric process developed for the European Space Agency's Gaia mission in Amazon EC2.    From Wordnik.com.  [Latest News from Open Source Magazine] Reference

"I think it's a very interesting find," Burgasser says, "although I would caution it is still unclear how close the source is, as there are only a few astrometric measurements made thus far.".    From Wordnik.com.  [Scientific American] Reference

Astrophysical Journal, Steven Pravdo and Stuart Shaklan of the NASA Jet Propulsion Laboratory in Pasadena, Calif., took astrometric observations of 30 stars over 12 years at Palomar Observatory in southern California.    From Wordnik.com.  [Scientific American] Reference

Reconstructing the full three-dimensional space motion of the hypervelocity stars, through astrometric proper motions, provides a unique opportunity to measure the shape and orientation of the triaxial dark matter halo.    From Wordnik.com.  [SpaceRef Top Stories] Reference

Using these photometric and astrometric tools, we will reconstruct the detailed star-formation history as a function of position within the bulge, and thus differentiate between rapid - and extended-formation scenarios.    From Wordnik.com.  [SpaceRef Top Stories] Reference

The scientific requirements of the mission (for example, astrometric measurements accurate to 24 microarcsec (at V = 15 magnitude)) translate to a requirement for a payload platform that is mechanically and thermally ultra stable.    From Wordnik.com.  [ESA Science & Technology] Reference

The expected 3-4 astrometric doubles that will be discovered will be invaluable in that they will be the first systems from which gravitational masses of metal-poor stars at the bottom of the main sequence can be directly measured.    From Wordnik.com.  [SpaceRef Top Stories] Reference

We propose to obtain high-resolution images of 11 new hypervelocity stars in the Galactic halo in order to establish the first-epoch astrometric frame, as a part of a long-term program to measure precise proper motions in an absolute inertial frame.    From Wordnik.com.  [SpaceRef Top Stories] Reference

We propose that a series of FGS astrometric observations with demonstrated 1 millisecond of arc per-observation precision can establish the degree of coplanarity and component true masses for four extrasolar systems: HD 202206 (brown dwarf+planet); HD 128311.    From Wordnik.com.  [SpaceRef - Calendar of Events] Reference

We propose that a series of FGS astrometric observations with demonstrated 1 millisecond of arc per-observation precision can establish the degree of coplanarity and component true masses for four extrasolar systems: HD 202206 (brown dwarf+planet); HD 128311 (planet+planet).    From Wordnik.com.  [SpaceRef Top Stories] Reference

astrometric pipeline and, 62.    From Wordnik.com.  [A Grand and Bold Thing] Reference

astrometric pipelines, 62.    From Wordnik.com.  [A Grand and Bold Thing] Reference

These include eclipsing, visual, spectroscopic, and astrometric binaries.    From Wordnik.com.  [Conservapedia - Recent changes [en]] Reference